CN220816638U - Superimposed hydraulic control reversing valve group suitable for valve position continuous display - Google Patents
Superimposed hydraulic control reversing valve group suitable for valve position continuous display Download PDFInfo
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- CN220816638U CN220816638U CN202322368470.0U CN202322368470U CN220816638U CN 220816638 U CN220816638 U CN 220816638U CN 202322368470 U CN202322368470 U CN 202322368470U CN 220816638 U CN220816638 U CN 220816638U
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- 239000003208 petroleum Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a superposition type hydraulic control reversing valve group suitable for valve position continuous display (indirect), which is arranged between a three-position four-way electromagnetic valve and a hydraulic actuator; the valve group comprises a valve body, a one-way throttle valve, a valve core, a spring, a plug and an oil way; a valve position flowmeter is connected in series with the valve group; the valve core is positioned in an inner groove of the valve body, and the upper end of the inner groove is connected with an A2 oil port, a T port and a B2 oil port through pipelines; the lower end of the inner groove is connected with two one-way throttle valves through a pipeline; one side of the left one-way throttle valve is connected with an A1 oil port through a pipeline; the one-way throttle valve positioned on the right side is connected with a B1 oil port. The hydraulic control reversing valve group is suitable for a hydraulic pipeline system requiring continuous (indirect) display of valve positions (angle strokes of 0-90 degrees), and the valve position flowmeter is always positioned in an oil return pipeline in a superposition and series connection mode, so that the valve position display is more accurate and reliable. Can be widely applied to the places such as ships, water treatment, petroleum, chemical industry, electric power, oil and gas transportation, etc.
Description
Technical Field
The utility model relates to a superposed hydraulic control reversing valve group suitable for valve position continuous display, and belongs to the technical field of reversing valves.
Background
In the past, the valve position flowmeter is directly arranged between the three-position four-way electromagnetic valve 7 and the valve hydraulic actuator (refer to fig. 1), when the valve is opened, high-pressure oil is commutated through the electromagnetic directional valve 7, flows into the cavity A of the hydraulic actuator from the port P, and low-pressure oil returns to the port T from the cavity B of the hydraulic actuator through the valve position flowmeter 8; when the valve is closed, high-pressure oil is commutated through the electromagnetic commutating valve 7, flows into the cavity B of the hydraulic actuator through the valve position flowmeter 8 from the port P, and low-pressure oil returns to the port T from the cavity A of the hydraulic actuator.
In summary, according to the characteristic of opening and closing the valve, when the valve is opened, the valve position flowmeter 8 is driven to work by low pressure oil; when the valve is closed, the valve position flowmeter 8 is driven to work by high-pressure oil; the temperature and flow rate generated by extrusion are different when high-pressure oil and low-pressure oil flow through the valve position flowmeter 8 in each cycle of valve opening and closing, so that the rotation number of the valve position flowmeter 8 is different. With the increase of the frequency and time of use, the difference increases cumulatively, which further affects the display accuracy of the valve position flowmeter 8, so that the actual opening and closing angle of the valve is inconsistent with the display of the valve position flowmeter 8, and frequent calibration is required. Therefore, the prior art is affected by pressure, temperature and other environments, has poor repeatability, high maintenance frequency and low reliability.
Disclosure of utility model
Aiming at the problems in the prior art, the utility model provides the overlapped hydraulic control reversing valve group suitable for continuously displaying valve positions, thereby solving the technical problems.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the superposed hydraulic control reversing valve group is arranged between a three-position four-way electromagnetic valve and a hydraulic actuator; the valve group comprises a valve body, a one-way throttle valve, a valve core, a spring, a plug and corresponding oil ways; a valve position flowmeter is connected in series with the valve group; the valve core is positioned in an inner groove of the valve body, and the upper end of the inner groove is connected with an A2 oil port, a T port and a B2 oil port through pipelines; the lower end of the inner groove is connected with two one-way throttle valves through a pipeline; one side of the one-way throttle valve positioned at the left side is connected with an A1 oil port through a pipeline; the one-way throttle valve positioned on the right side is connected with a B1 oil port.
Further, the three-position four-way electromagnetic valve) is provided with a P oil port, a T oil port, an A oil port and a B oil port; the oil A port is connected with a pipeline of the left one-way throttle valve; the oil port B is connected with a pipeline of the right one-way throttle valve; the P oil port is used for inputting high-pressure oil; the T-shaped oil port is used for outputting low-pressure oil.
Further, one side of the A2 oil port is connected with an A cavity of the hydraulic actuator through a pipeline; one side of the B2 oil port is connected with a B cavity of the hydraulic actuator through a pipeline.
Furthermore, the valve group is also provided with a Ta oil port and a Tb oil port, and a valve position flowmeter is connected between the Ta oil port and the Tb oil port; the Ta oil port is arranged between the A1 oil port and the B1 oil port; the Tb oil port is arranged at the A2 oil port and the B2 oil port.
The beneficial effects of the utility model are as follows: the device realizes the series connection of two mounting surfaces of a valve bank connecting an electromagnetic valve (P/T/A/B port) and a flowmeter (P/T/A2/B2/Ta/Tb port) through the design of a valve core. The valve group adopts a superposition form, the structure is very compact, the volume is very small, and the installation is convenient. Meanwhile, the valve core is pushed to work by adopting high-pressure oil of the system, and an external power supply is not needed for driving, so that the switching-over function of the valve group can be switched and synchronous with the opening and closing of the valve, and the reliability is high.
Through the superposition between three-position four-way solenoid valve and valve position flowmeter, make valve position flowmeter establish ties in the low pressure oil pipeline all the time, avoided high, low pressure oil to the influence of the temperature, the velocity of flow that the extrusion of valve position flowmeter produced, solved the problem that the number of turns of valve position flowmeter produced the difference to make valve position flowmeter show accurately.
On the basis of not changing the original structure, the problems of poor repeatability, high maintenance frequency and low reliability of the flowmeter after multiple works are perfectly solved. The stability and the reliability of the flowmeter are greatly improved, and the flowmeter has the advantages of light weight, reasonable and compact structure, reliable functions and the like.
Drawings
FIG. 1 is a schematic diagram of a structure of the background art;
FIG. 2 is a schematic top view of the structure of the present utility model;
FIG. 3 is a schematic cross-sectional view of the C-C structure of FIG. 2 in accordance with the present utility model;
FIG. 4 is a schematic view of the bottom structure of the valve block of the present utility model;
fig. 5 is a schematic diagram of the valve group connection principle of the present utility model.
In the figure: 1. the valve comprises a valve body, a one-way throttle valve, a valve core, a valve body, a valve core, a spring, a plug, a hydraulic actuator, a three-position four-way electromagnetic valve, a valve position flowmeter and a valve position flowmeter.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model.
As shown in fig. 2-5, a superimposed hydraulic control reversing valve group suitable for valve position continuous display is arranged between a three-position four-way electromagnetic valve 7 and a hydraulic actuator 6; the valve group comprises a valve body 1, a one-way throttle valve 2, a valve core 3, a spring 4, a plug 5 and corresponding oil ways; the valve group is connected with a valve position flowmeter 8 in series; the valve core 3 is positioned in an inner groove of the valve body 1, and the upper end of the inner groove is connected with an A2 oil port, a T port and a B2 oil port through pipelines; the lower end of the inner groove is connected with two one-way throttle valves 2 through a pipeline; one side of the one-way throttle valve 2 positioned at the left side is connected with an A1 oil port through a pipeline; the one-way throttle valve 2 positioned on the right side is connected with a B1 oil port.
In the preferred embodiment, a P oil port, a T oil port, an A oil port and a B oil port are arranged on the three-position four-way electromagnetic valve 7; the oil A port is connected with a pipeline of the left one-way throttle valve 2; the oil port B is connected with a pipeline of the right one-way throttle valve 2; the P oil port is used for inputting high-pressure oil; the T-shaped oil port is used for outputting low-pressure oil.
In the preferred embodiment, one side of the A2 oil port is connected with an A cavity of the hydraulic actuator 6 through a pipeline; one side of the B2 oil port is connected with a B cavity of the hydraulic actuator 6 through a pipeline.
The valve group is also provided with a Ta oil port and a Tb oil port, and a valve position flowmeter 8 is connected between the Ta oil port and the Tb oil port; the Ta oil port is arranged between the A1 oil port and the B1 oil port; the Tb oil port is arranged at the A2 oil port and the B2 oil port.
Working principle:
When the valve core 3 is in the middle position, the port A/B is directly connected with the port T, and the valve position flowmeter 8 does not work;
When the valve is opened, high-pressure oil passes through the port P, the port A (through the left one-way throttle valve 2), the port A1, the port A2 (pushing the valve core 3 to move right, the left cavity enters into work), the cavity A (the hydraulic actuator 6), low-pressure oil passes through the cavity B (the hydraulic actuator 6), the port B2, the port Tb (through the valve position flowmeter 8), the port Ta, the port B1 (through the right one-way throttle valve 2), the port B and the port T;
When the valve is closed, high-pressure oil passes through the port P, the port B (through the right one-way throttle valve 2), the port B1, the port B2 (pushing the valve core 3 to move left, the right cavity enters into work), the cavity B (the hydraulic actuator 6), and low-pressure oil passes through the cavity A (the hydraulic actuator 6), the port A2, the port Ta (through the flowmeter 8), the port Tb, the port A1 (through the left one-way throttle valve 2), the port A and the port T.
The valve body 1 of the device is provided with a mounting hole connected with a three-position four-way electromagnetic valve 7 and a flowmeter. When the valve is opened and closed, the flowmeter 8 is always connected in series in the low-pressure oil pipeline. The one-way throttle valve 2 realizes the stability of the system flow during oil return;
The port A1-port A2 and the port B1-port B2 adopt the design of a throttling groove, so that impact fluctuation when the valve core 3 is pushed by high-pressure oil of a system is relieved.
The A2/B2/T/Ta/Tb port adopts a porous flow passage design, so that the volume of the valve bank is greatly reduced, the weight of the valve bank is lightened, and the structure is more compact.
The device realizes the serial connection of two mounting surfaces of a valve group connecting electromagnetic valve 7 (P/T/A/B port) and a flowmeter 8 (P/T/A2/B2/Ta/Tb port) through the design of the valve core 3. The valve group adopts a superposition form, the structure is very compact, the volume is very small, and the installation is convenient. Meanwhile, the valve core is pushed to work by adopting high-pressure oil of the system, and an external power supply is not needed for driving, so that the switching-over function of the valve group can be switched and synchronous with the opening and closing of the valve, and the reliability is high.
Through the superposition between three-position four-way solenoid valve 7 and valve position flowmeter 8, make valve position flowmeter 8 establish ties in the low pressure oil pipeline all the time, avoided high, low pressure oil to the influence of temperature, the velocity of flow that extrusion of valve position flowmeter 8 produced, solved the problem that valve position flowmeter 8 rotation number of turns produced the difference to make valve position flowmeter 8 show accurately.
On the basis of not changing the original structure, the problems of poor repeatability, high maintenance frequency and low reliability of the flowmeter 8 after multiple works are perfectly solved. Greatly improves the stability and reliability of the flowmeter, and has the advantages of light weight, reasonable and compact structure, reliable function and the like
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. The superposition type hydraulic control reversing valve group suitable for valve position continuous display is characterized in that the valve group is arranged between a three-position four-way electromagnetic valve (7) and a hydraulic actuator (6); the valve group comprises a valve body (1), a one-way throttle valve (2), a valve core (3), a spring (4), a plug (5) and corresponding oil passages; a valve position flowmeter (8) is connected in series with the valve group; the valve core (3) is positioned in an inner groove of the valve body (1), and the upper end of the inner groove is connected with an A2 oil port, a T port and a B2 oil port through pipelines; the lower end of the inner groove is connected with two one-way throttle valves (2) through a pipeline; one side of the one-way throttle valve (2) positioned at the left side is connected with an A1 oil port through a pipeline; the one-way throttle valve (2) positioned on the right side is connected with a B1 oil port.
2. The superimposed hydraulic control reversing valve group suitable for valve position continuous display according to claim 1, wherein a P oil port, a T oil port, an A oil port and a B oil port are arranged on the three-position four-way electromagnetic valve (7); the oil A port is connected with a pipeline of the left one-way throttle valve (2); the oil port B is connected with a pipeline of the right one-way throttle valve (2); the P oil port is used for inputting high-pressure oil; the T-shaped oil port is used for outputting low-pressure oil.
3. The superimposed hydraulic control reversing valve group suitable for valve position continuous display according to claim 1, wherein one side of the A2 oil port is connected with an A cavity of a hydraulic actuator (6) through a pipeline; one side of the B2 oil port is connected with a B cavity of the hydraulic actuator (6) through a pipeline.
4. The superimposed hydraulic control reversing valve group suitable for valve position continuous display according to claim 1, wherein the valve group is further provided with a Ta oil port and a Tb oil port, and a valve position flowmeter (8) is connected between the Ta oil port and the Tb oil port; the Ta oil port is arranged between the A1 oil port and the B1 oil port; the Tb oil port is arranged at the A2 oil port and the B2 oil port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322368470.0U CN220816638U (en) | 2023-08-31 | 2023-08-31 | Superimposed hydraulic control reversing valve group suitable for valve position continuous display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322368470.0U CN220816638U (en) | 2023-08-31 | 2023-08-31 | Superimposed hydraulic control reversing valve group suitable for valve position continuous display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816638U true CN220816638U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322368470.0U Active CN220816638U (en) | 2023-08-31 | 2023-08-31 | Superimposed hydraulic control reversing valve group suitable for valve position continuous display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816638U (en) |
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2023
- 2023-08-31 CN CN202322368470.0U patent/CN220816638U/en active Active
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